Seems like a good price for a 3G WiFi modem, with 1GB data. Handy to have if your home ADSL/cable goes down.
Has been popular before: https://www.ozbargain.com.au/node/167125
Can be unlocked (Ive done it on a work unit)
http://forums.whirlpool.net.au/forum-replies.cfm?t=2045971
From memory it supports up to 5 devices out of the box, but with the unlocked firmware I think that goes up to 10 devices connected at once. I also think it can connect via USB to a PC, so not for WiFi devices only.
Was $10 the week prior.